I think your hair is beautiful. I know the feeling regarding rudeness about the thickness of your hair. Stylists run away from me & over charge me. But I think if you feel better with straight hair you should blow it out & flat iron it from time to time. Relaxers & Keratin can be disasterous but flat irons, with heat protective products are a temporary release that won't hurt your curls as much. You will also get some versatility that way. You look great curly or straight though. Do what makes you happy.